Am I wrong?

So my girlfriend moved in with me 4 months ago and it has honestly been kind of a nightmare. I have a 4 year old son from a previous marriage and I was honestly a little nervous about trying to date a women. I was a bit confused on my sexuality but I really liked her so we decided to date. When she moved in she didn't actually want to share a room with me, which I found strange. She wanted her own space so she stayed in the guest room. Things went down hill very quickly. We had wifi but I couldn't really afford cable. She told me she wanted cable and she would pay for it. She doesn't have a job, but she gets disability for her 16 year old son. Her son lives with his grandparents but the court doesn't know that so she would still receive his check. She agreed to pay for the cable so I said okay. She got the most expensive premium cable. When it came time for the bill she said she was gonna pay it. She had asked to use my debit card to order some Chinese food andbI said yes. I didn't know until it was time to pay my car payment, but I didn't gave enough funds. I looked at my bank statement and she MY money on the cable. I confronted her and she said she would just pay me back. Also she is really dirty. I have a trashcan in the bathroom and leaves her bloody pads and tampons on the floor! My son picked it up and asked what it was and I got so mad but she said I was overreacting. I also start to notice this really bad smell coming from her room. I asked if she could clean her room and she started fighting with me and basically threw a whole fit. When I go into her room and there are dishes COVERED IN NASTY MOLD!!! I told her I have a son and we can't love like this and she says "Well if your fucking son keeps his ass out of my room he won't have to worry about it." I don't want mold in my house. Is that too much to ask. Back to the cable situation. She never paid me back that money and tried to get me to pay for it again and I said if she's not gonna pay for it I'm just gonna cancel it. She yelled at me, went to her room and called her dad crying super loud about how mean I'm being to her. This whole situation was getting so ridiculous so I sat her down and tried to have a talk with her and she started yelling at me saying I'm being unfair. Apparently wanting her to pay for the cable SHE asked for and asking her to clean her room and not leave her bloody pads and tampons on the floor is unfair. She gets up in mid conversation and slams her door shut and gives me the silent treatment all day. Am I asking too much of her because I don't feel like I am. I'm honestly wondering if she even cares about me or just wants a place to stay.